The Use of Trimethoprim-Sulfamethoxazole for Serious MRSA Infections

Document Type

Article

Publication Date

10-1-2005

Description

Vancomycin has been considered first-line treatment for bacteremia caused by methicillin-resistant Staphylococcus aureus (MRSA) despite treatment failures in up to 20% of patients with MRSA bacteremia secondary to endocarditis. However, trimethoprim-sulfamethoxazole (TMP-SMX) is as effective as vancomycin for the management of MRSA bacteremia. secondary to endocarditis in injection drug users. We report the successful management of a left ventricular assist device-related MRSA infection with persistent MRSA bacteremia that failed to respond to vancomycin, linezolid, and quinupristin/dalfopristin but did respond to TMP-SMX.

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